Die mechanism



Dec. 8, 1931. A. w. ALTVATER DIE MECHANI SM Filed Nov. 29, 1929 io j Vvide mechanism for speedily and convenientylasting vand finishing operations.

Patented Dec. 8, 1931 PATENT OFFICE ARTHUR W. ALTVATER, OF ST. LOUIS, MISSOURI DIE MECHANISM .Application filed November 29, 1929.

This invention 'relates to ydie mechanism. `One object of the present invention is to provide an improved machine adapted for and-capable of application to many useful purposes such, for instance, as making ornamental cut-outs for shoe parts and shoe uppers, and for otherwise ornamenting the work by producing ornamental outlines and demarcations.

Another object of the invention is to proly attaching a die to its holder.

This vmachine may be operated to trnn and cutout the linings of completed shoes to .Y correspond with previously formed cut-outs in the uppers of the shoes, when the linings were leftl without cut-outs in the shoe uppers in order to reinforce and prevent stretching and distortion of the shoe uppers during the In these operations of trimming and forming cutouts in the linings of completed shoes to correspond with previously formed cut-outs in ,the shoe uppers, the cutting edges of the dies are located in the cut-out openings or holes in the shoe uppers by preliminary manualoperations of the dies, after which the dies are positively driven to cut through the linings `of the completed shoes along the edges yof the cut-outs or'holes in the shoe uppers in which the dies had been inserted. In these operations, the dies function as gages-to guide the operator in the location of the shoe uppers and completed shoes, by placing the cutting edges of the dies within the correspondingly shaped cut-,outs or holes inthe shoe uppers.

Various other objects will appear from the following description, reference being made to the accompanying drawings, in which- Fig. 1 is a view partly in section of a machine including the mechanism.

Fig. 2 is a view of the die and die holder.

Fig.; 3 is a view of the die and die holder similar to Fig. 2 from another side, in combination with the die carrier partly in section.

Fig. 4 is a plan view of the die holder head.. Fig. 5 is a plan view of the face plate of the die.

Serial No. 410,528.

Fig. 6 is a cross-section through the die holder head on the line 6-6 of Fig. 3.

Fig. 7 is a vertical section through the same on line 7 7 of Fig. 4.

The supporting frame 1 of the machine in- 55 cludes a vertical portion 2, a forwardly extending top portion 3 and a forwardly extending bottom arm 4. The bottom arm 4 has the socket 5 and the work support 6. The socket- 5 receives the member 7 which may be held in 60 position by the locking device 8. The die carrier Q is rotatably mounted upon the axial member 7 and includes the radially extending plate 10 for supporting the dies. A die striker plate 11 is provided in connection 65 with the die carrier 9 and may be made to rotate with the die carrier or not, as desired. As shown, the striker plate is in the form of a disc and is arranged to rest upon the work support 6 so as to support the work 70 for operation of the dies. The die carrier 9 is rotative about the member 7 as an axis to locate any of the dies that may be carried by the die carrier plate 10, in proper operative position.

The forward end portion 3 of the frame carries a latch support l2 having mounted therein a movable latch 13 actuated downwardly by a'spr'ing (not shown) to engage successively and selectively in an annular series of ca-yities or holes 14 in the upper surface of thel die carrier 9. Thus, when the latch 18 is engaged in any one of the cavities or holes 14, it will prevent the die carrier from turning as a result of vibration and oscillation of the machine. However, this latch device will permit forcible turning of the die carriers to selected adjustments.

A plunger 15 is mounted for vertical sliding movements in the forward end of the top portion 3. This plunger' has an internal threaded hole in its lower end (not shown) into which is screwed the threaded stem 16 of a head 17. Because of this manner of connection, it is obvious that the head 17 is 95 adjustable toward and away from the end of the plunger 15. ,A nut 18 is screwed on the stem 16 and is designed and adapted to engage the end of the plunger 15 so as to lock the stem 16 in connectionvwith the part 100 of the securingV member 33, havingl oneend ybearing against the flange V and the other .end fagainst the flange '32 of the securing Y is thereby guided.

the" die carrier.

15 and prevent said stem from working from the desired adjustment. Y

The die carrier plater 10 has a circumferentialrseries of sockets 19. In each of the sockets 19 a die holder is mounted, the same.

comprising a. head 2() having' a stem 21 projectingthrough a hole in the bottom wall of the socket 19 and upwardly into said socket. A spring 22 is within the socket 19 and has its lower end seated upon the bottom wall of said socket. Said spring encircles the stem 21` and has its upper end abutting-against the lower end of a cap 23. The cap 23 is mounted on the upper end of the stem 21 and projects downwardly into the socket 19 and Said cap is removably attached tothe upper end of the lstem 21 by a removable pin 24.

The stem 21 may be cylindrical and have 26 a key 25 to seat in a vertical channel 26 in theV lower wall of the hole at the bottom of the socket 19V and through which the stem 21 projects, 'thus to .prevent rotative movement of the die holder.y

The face plate 27 of the dieelement has the attaching member '28 rigidly secured to it by thepin 29. The attaching member v28 of normal cylindrical shape fits into a'socket r 30 in the die holder head. The attaching member 23 has an annular arcuate channel 31 yto cooperate with the flange 32 on a securing member 33. The securing member 33 is situated in a hole 34 through the head 20 of The hole 34 has an inwardly extending annularflange 35. rlhe securing member 33 is secured in position by the screw v:3 6 abutting the outer edge of the flange 35.

A spring 37 is placed about a reduced-'portion member. An annular groove 38 is cut from Each "die fu the securing memberv 33 so that when the member 33 is pushed inwardly, it will register with the socket 30, permitting vthe attaching member28 to be withdrawn without interference; otherwise, the flange 32 engages in the arcuate channel 31, holding the die in position.

- The face plate 27of thedie has a series of circumferential holes 39 arranged about its aXisto cooperatewith the Vball detent .40 positioned in a hole 4l by the spring 42 positioned behind the screw member 43.` lt will vthus be seen Vthat when the die is mounted in vits support, it will be held against movement due to oscillations orv vibrations in the machine, and yet may readily be manually rotated' from` one position to another, depending'upon the number an d spacings of the cavities39."`.

Y rther comprises a hollowframe including depending side members 44 having -a headj45 ontheir lowerend with a cutting or ornamenting die'46. on its underside.l If

` cut therein.

would result if holes were cut through the This mechanism may be used with and operated by amachine which may be variously constructed. Such a machine is illustrated k and described in myapplication for Letters lPatent of the United States filed January 25,

1929, serialNjo. 334,934.`

:This application is anl improvement upon the machine illustrated and described in that 5:.'

application, and more particularly with reference to the method-of attachment and the arrangement between the die and its support and the arrangement between the support .and the carrier. 'It is not, however, limited to use with a machineV ofthe details there described.

tended functions ofthe machine must be apparent. The arms 4 and work support 6 are adapted to be extended intotted'sho'e uppers and into completed shoes. yItis clear 'enough that these partsgwillv'support shoes that are completed, in which yopenings have not been cut in `jthe liningsoppositepreviously formed `openings in theshoe uppers, preparatory 'to operation of the. machine Yto 'cut or trim openings through thelinings in register with the openings through the upeo'mpleted in 'order tov prevent stretching and distortion of the shoe uppers having the holes Such stretching and distortion linings and shoel uppers before lasting.y The otherwise completedshoesjmaybe placed on the parts'4 and 6V and the dies 45-'46 maybeV depressed to eXtend'l-.he beveled cutting edges 46 of the dies into correspondingly shaped cut-outs or openings in the uppers Ofcompleted shoes, thus enabling the operator to 'gage the completed'sh-oesfor alinal cutting operation of the" dies to produce the eut-outs in the linings# -xThetapered construction lof Vthe cutting edges'46'of1the dies leaves the Vmarginal portions of; the 1ining' around the cut-out openings 'extending Ventirely'toor slightly beyond the marginal .edges ofthe uppers around thev cut-outope-n- 'ingsf rEhus, anyf lines of stitches formed through the uppers and the linings around said cut-out openings will necessarily enga-ge Vboth the uppers and theliningssuliiciently to Vsecure said parts together.

v'From the foregoing description, the-injusting the'tappet'comprising the stemV 16, the head 17 and the nut 18.

pers.y The lining-sare left uncut until after wf',

the shoes have 'been lasted and otherwisev for lt is apparent that the construction, arrangement and relationship of the parts of the mechanism may be altered and varied Within a wide range of limits Without departing from the nature and principle of the invention. It is also apparent that parts of these improvements may be advantageously used Without appropriating the Whole.

I do not restrict myself to any unessential details, but what I claim and desire to secure by Letters Patent is:

l. A die having a face plate, and a series ofy circumferential recesses, in combination with a die support and means for holding the die selectively in a plurality of rotative positions, including on said face plate a post having a circular cross-section and an annular recess in its periphery, an attaching block on said support having a socket in its lower end to receive said post and a lateral pin through said block intersecting said socket, said pin having a ange to engage said recess and a reduced portion suflicient to clear the socket, and a spring to normally hold the fiange in engagement in the recess, and a detent on the bottom of said block to selectively engage in any one ofsaid circumferential recesses on the die face plate.

2. A die mechanism comprising a die carrier, means forming a socket having a bottom Wall in connection With said carrier, a stem mounted for longitudinal movements through said socket, means in said socket for actuating said stem longitudinally in one direction, means in connection with said stem co-operating With said socket to prevent said stem from turning about its axis, a head attached to said stem, and means for supporting a die in selected adjusted positions in connection With said head.

3. A die mechanism comprising a carrier, means forming a socket in connection With said carrier, a stem mounted for longitudinal movements in said socket, a head on said stem engaging said socket and limiting extent of movement of said stem in one direction, a spring in said socket for moving said stem to the extent permitted by said head, and means for attaching a die to said head in dierent selected adjustments.

4. A die mechanism comprising a carrier, means forming a socket in connection with said carrier, a stem mounted for longitudinal movements in said socket, a head attached to said stem and abutting against said socket and limiting extent of movement of said stem in one direction, a spring in said socket for moving said stem to the position permitted by said head, means for supporting a die in connection with said head, and means for holdingsaid die in any one of a number of sef lected adjustments in connection with said' head.

5. A die mechanism comprlsing a carrier, means forming a socket 1n connection with said carrier, a stem mounted for longitudinal movements in said socket, a head attached to said stem and abutting against said socket and limiting extent of movement of said stem in one direction, a spring in said .socket for moving said stem to the position permitted by said head, means for supporting a die in connection with said head, means for holding said die in any one of a number of selected adjustments in connection with said head, and means for releasing said die from said head.

6. A die mechanism comprising a carrier, a stem supported by said carrier for longitudinal movements, means preventing said stem from turning about its axis, a head attached to said stem, a device supported by said head for engaging and supporting a die in connection With said head, means for holding said die in any one of a number of selected positions in connection With said head, and means for releasing said device from said die.

ARTHUR W. ALTVATER. 

